The Paquet reverse with "perfect ribbon" combined with the regular obverse die.
Its first appearance is believed to be as lot 693 in William Strobridge's 3/1863 sale. Today, 4 examples are confirmed as follows:
1) Byron Reed-Durham Museum - ICG64, possibly from Doughty (New York Coin & Stamp April 1891 lot 323)
2) Judd, 66 ANA ?, Kosoff 2/70, Kosoff 8/71, Harry W. Bass Jr. Research Foundation
3) Farouk, Morris Evans, Bowers and Merena 8/98, Superior 8/04, ANR 11/04, Simpson collection - PCGS61, cleaned and lacquered - illustrated above.
4) 1976 ANA, ANR 3/06, Jewell, Stacks-Bowers 8/11 ANA,Stacks-Bowers 3/12, Stacks-Bowers 11/12, Stacks-Bowers 3/13 - PCGS63
The R.E. Cox-Stacks 4/62 specimen is believed to duplicate either #3 or #4 above.
A single example, defaced, is known struck in copper J223/P266 and is ex Lefferts (1881), Farouk, Judd.
2 white metal splashers of the reverse lacking dentilation are known JA1858-4/P3176 as well as a set up piece for the reverse lettering JA1858-5/P3179.
Photo courtesy of Superior.